indispensability

Definitions

The quality of being absolutely necessary or essential.

The state of being impossible to do without or replace.

Examples

The indispensability of clean water to human survival cannot be overstated.

She quickly proved her indispensability to the team by solving the complex technical issues that had stalled the project.

Synonyms

necessity essentiality cruciality vitality requirement imperativeness importance

Antonyms

dispensability unimportance inessentiality superfluity optionality irrelevance triviality